41980-99-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 41980-99-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,1,9,8 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 41980-99:
(7*4)+(6*1)+(5*9)+(4*8)+(3*0)+(2*9)+(1*9)=138
138 % 10 = 8
So 41980-99-8 is a valid CAS Registry Number.